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CPC technology class · C10

C10B - Destructive Distillation OF Carbonaceous Materials FOR Pr…

Destructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials. 1,527 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

1,527
US patents granted
C10
Parent CPC class
20
Active assignees
+20%
5-yr velocity

The verdict

Destructive Distillation OF Carbonaceous Materials FOR Pr… ranks #403 of 670 CPC technology areas - 1,527 US patents granted since 2015, with filing up 20% over five years.

#403
of 670 CPC technology areas
1,527
US patents granted, 2015–2025
Suncoke Technology An…
leading assignee (85)
+20%
filing velocity, last 5 yrs
Top assignee: Suncoke Technology AND Development Llc (85 patents)

CPC subclass C10B - DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS - covers 1,527 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT). See our CPC classification guide for how the system works.

The competitive landscape in C10B is shaped by 20 distinct companies actively filing in this space. Suncoke Technology AND Development Llc leads with 85 patents, followed by Carbon Technology Holdings, Llc at 44 grants and Cool Planet Energy System, Inc. at 29.

Filing activity in C10B is up 20% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is C10B innovation accelerating?

US utility-patent grants per year in C10B, 2015–2025 - recent five years are up 20% versus 2015–2019.

110120130140150160 20152016201720182019202020212022202320242025 136

Who leads C10B?

The 12 most active assignees in DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS - wider bars mean more grants

patents

What this shows Suncoke Technology An… is the most active filer in C10B, holding 85 of the 1,527 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass C10B
Rank Company Patents in C10B
#1 Suncoke Technology AND Development Llc 85
#2 Carbon Technology Holdings, Llc 44
#3 Cool Planet Energy System, Inc. 29
#4 Anellotech, Inc. 20
#5 UOP Llc 18
#6 Indian Oil Corporation Limited 17
#7 Ensyn Renewables, Inc. 16
#8 Inaeris Technologies, Llc 15
#9 Chevron Phillips Chemical Company Lp 14
#10 Carbon Holdings Intellectual Properties, Llc 14
#11 Ecogensus Llc 12
#12 Thyssenkrupp Uhde Gmbh 11
#13 Biochar Now, Llc 11
#14 Flowserve Management Company 10
#15 Bechtel Hydrocarbon Technology Solutions, Inc. 10
#16 Amec Foster Wheeler USA Corporation 10
#17 Mcalister Technologies, Llc 9
#18 CHZ Technologies, Llc 9
#19 Thyssenkrupp Industrial Solutions Ag 8
#20 Proton Power, Inc. 8

About This Class

CPC subclass C10B belongs to class C10.

1,527 patents were granted in this class between 2015 and 2025.

20 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

Footprint here vs. claim strategy

Each dot is a leading C10B assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 C10B assignees by class footprint. Bubble size = patents in C10B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C10B assignees by class footprint. Bubble size = patents in C10B. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 10152025 020406080100 Patents in C10B Avg claims / patent (company-wide) Suncoke Technology An…Carbon Technology Hol…Cool Planet Energy Sy…AnellotechUopIndian OilEnsyn RenewablesInaerisChevron Phillips Chem…Carbon Holdings Intel…Ecogensusthyssenkrupp UhdeBiochar NowFlowserve Management
Top 14 C10B assignees by class footprint. Bubble size = patents in C10B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C10B?
CPC subclass C10B covers DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS. It belongs to CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT), with 1,527 US utility patents granted since 2015.
How many patents have been filed in C10B?
1,527 US utility patents were granted in CPC subclass C10B between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C10B?
Suncoke Technology AND Development Llc leads C10B with 85 patents, making it the most active assignee in this technology area.
How is patent data for C10B collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., C10) is a broad technology category. Subclasses like C10B provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.